The soft tissue of a plesiosaur has been studied in detail for the first time, revealing that the marine reptiles, which lived during the age of dinosaurs and went extinct at the same time ...

Millions of years ago, a long-necked marine predator with flippers dominated the seas. Plesiosaurs were marine reptiles that ...

Scientists said they identified fossils of plesiosaurs in an ancient river system, which may indicate they lived in freshwater areas — like Loch Ness in Scotland — and not only seawater Jason ...

A “pellet” found in a plesiosaur fossil unearthed in Kagoshima Prefecture indicates the prehistoric creature regurgitated indigestible parts of its prey, much like modern birds and alligators ...